src/guiFormSpecMenu.cpp

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20
  21 #include "guiFormSpecMenu.h"
  22 #include "constants.h"
  23 #include "gamedef.h"
  24 #include "keycode.h"
  25 #include "strfnd.h"
  26 #include <IGUICheckBox.h>
  27 #include <IGUIEditBox.h>
  28 #include <IGUIButton.h>
  29 #include <IGUIStaticText.h>
  30 #include <IGUIFont.h>
  31 #include "log.h"
  32 #include "tile.h" // ITextureSource
  33 #include "util/string.h"
  34 #include "util/numeric.h"
  35
  36 #include "gettext.h"
  37
  38 void drawItemStack(video::IVideoDriver *driver,
  39                 gui::IGUIFont *font,
  40                 const ItemStack &item,
  41                 const core::rect<s32> &rect,
  42                 const core::rect<s32> *clip,
  43                 IGameDef *gamedef)
  44 {
  45         if(item.empty())
  46                 return;
  47
  48         const ItemDefinition &def = item.getDefinition(gamedef->idef());
  49         video::ITexture *texture = def.inventory_texture;
  50
  51         // Draw the inventory texture
  52         if(texture != NULL)
  53         {
  54                 const video::SColor color(255,255,255,255);
  55                 const video::SColor colors[] = {color,color,color,color};
  56                 driver->draw2DImage(texture, rect,
  57                         core::rect<s32>(core::position2d<s32>(0,0),
  58                         core::dimension2di(texture->getOriginalSize())),
  59                         clip, colors, true);
  60         }
  61
  62         if(def.type == ITEM_TOOL && item.wear != 0)
  63         {
  64                 // Draw a progressbar
  65                 float barheight = rect.getHeight()/16;
  66                 float barpad_x = rect.getWidth()/16;
  67                 float barpad_y = rect.getHeight()/16;
  68                 core::rect<s32> progressrect(
  69                         rect.UpperLeftCorner.X + barpad_x,
  70                         rect.LowerRightCorner.Y - barpad_y - barheight,
  71                         rect.LowerRightCorner.X - barpad_x,
  72                         rect.LowerRightCorner.Y - barpad_y);
  73
  74                 // Shrink progressrect by amount of tool damage
  75                 float wear = item.wear / 65535.0;
  76                 int progressmid =
  77                         wear * progressrect.UpperLeftCorner.X +
  78                         (1-wear) * progressrect.LowerRightCorner.X;
  79
  80                 // Compute progressbar color
  81                 //   wear = 0.0: green
  82                 //   wear = 0.5: yellow
  83                 //   wear = 1.0: red
  84                 video::SColor color(255,255,255,255);
  85                 int wear_i = MYMIN(floor(wear * 600), 511);
  86                 wear_i = MYMIN(wear_i + 10, 511);
  87                 if(wear_i <= 255)
  88                         color.set(255, wear_i, 255, 0);
  89                 else
  90                         color.set(255, 255, 511-wear_i, 0);
  91
  92                 core::rect<s32> progressrect2 = progressrect;
  93                 progressrect2.LowerRightCorner.X = progressmid;
  94                 driver->draw2DRectangle(color, progressrect2, clip);
  95
  96                 color = video::SColor(255,0,0,0);
  97                 progressrect2 = progressrect;
  98                 progressrect2.UpperLeftCorner.X = progressmid;
  99                 driver->draw2DRectangle(color, progressrect2, clip);
 100         }
 101
 102         if(font != NULL && item.count >= 2)
 103         {
 104                 // Get the item count as a string
 105                 std::string text = itos(item.count);
 106                 v2u32 dim = font->getDimension(narrow_to_wide(text).c_str());
 107                 v2s32 sdim(dim.X,dim.Y);
 108
 109                 core::rect<s32> rect2(
 110                         /*rect.UpperLeftCorner,
 111                         core::dimension2d<u32>(rect.getWidth(), 15)*/
 112                         rect.LowerRightCorner - sdim,
 113                         sdim
 114                 );
 115
 116                 video::SColor bgcolor(128,0,0,0);
 117                 driver->draw2DRectangle(bgcolor, rect2, clip);
 118
 119                 video::SColor color(255,255,255,255);
 120                 font->draw(text.c_str(), rect2, color, false, false, clip);
 121         }
 122 }
 123
 124 /*
 125         GUIFormSpecMenu
 126 */
 127
 128 GUIFormSpecMenu::GUIFormSpecMenu(gui::IGUIEnvironment* env,
 129                 gui::IGUIElement* parent, s32 id,
 130                 IMenuManager *menumgr,
 131                 InventoryManager *invmgr,
 132                 IGameDef *gamedef
 133 ):
 134         GUIModalMenu(env, parent, id, menumgr),
 135         m_invmgr(invmgr),
 136         m_gamedef(gamedef),
 137         m_form_src(NULL),
 138         m_text_dst(NULL),
 139         m_selected_item(NULL),
 140         m_selected_amount(0),
 141         m_selected_dragging(false),
 142         m_tooltip_element(NULL)
 143 {
 144 }
 145
 146 GUIFormSpecMenu::~GUIFormSpecMenu()
 147 {
 148         removeChildren();
 149
 150         delete m_selected_item;
 151         delete m_form_src;
 152         delete m_text_dst;
 153 }
 154
 155 void GUIFormSpecMenu::removeChildren()
 156 {
 157         const core::list<gui::IGUIElement*> &children = getChildren();
 158         core::list<gui::IGUIElement*> children_copy;
 159         for(core::list<gui::IGUIElement*>::ConstIterator
 160                         i = children.begin(); i != children.end(); i++)
 161         {
 162                 children_copy.push_back(*i);
 163         }
 164         for(core::list<gui::IGUIElement*>::Iterator
 165                         i = children_copy.begin();
 166                         i != children_copy.end(); i++)
 167         {
 168                 (*i)->remove();
 169         }
 170         /*{
 171                 gui::IGUIElement *e = getElementFromId(256);
 172                 if(e != NULL)
 173                         e->remove();
 174         }*/
 175         if(m_tooltip_element)
 176         {
 177                 m_tooltip_element->remove();
 178                 m_tooltip_element = NULL;
 179         }
 180 }
 181
 182 void GUIFormSpecMenu::regenerateGui(v2u32 screensize)
 183 {
 184         // Remove children
 185         removeChildren();
 186
 187         v2s32 size(100,100);
 188         s32 helptext_h = 15;
 189         core::rect<s32> rect;
 190
 191         // Base position of contents of form
 192         v2s32 basepos = getBasePos();
 193         // State of basepos, 0 = not set, 1= set by formspec, 2 = set by size[] element
 194         // Used to adjust form size automatically if needed
 195         // A proceed button is added if there is no size[] element
 196         int bp_set = 0;
 197
 198         /* Convert m_init_draw_spec to m_inventorylists */
 199
 200         m_inventorylists.clear();
 201         m_images.clear();
 202         m_backgrounds.clear();
 203         m_fields.clear();
 204
 205         Strfnd f(m_formspec_string);
 206         while(f.atend() == false)
 207         {
 208                 std::string type = trim(f.next("["));
 209                 if(type == "invsize" || type == "size")
 210                 {
 211                         v2f invsize;
 212                         invsize.X = stof(f.next(","));
 213                         if(type == "size")
 214                         {
 215                                 invsize.Y = stof(f.next("]"));
 216                         }
 217                         else{
 218                                 invsize.Y = stof(f.next(";"));
 219                                 f.next("]");
 220                         }
 221                         infostream<<"Form size ("<<invsize.X<<","<<invsize.Y<<")"<<std::endl;
 222
 223                         padding = v2s32(screensize.Y/40, screensize.Y/40);
 224                         spacing = v2s32(screensize.Y/12, screensize.Y/13);
 225                         imgsize = v2s32(screensize.Y/15, screensize.Y/15);
 226                         size = v2s32(
 227                                 padding.X*2+spacing.X*(invsize.X-1.0)+imgsize.X,
 228                                 padding.Y*2+spacing.Y*(invsize.Y-1.0)+imgsize.Y + (helptext_h-5)
 229                         );
 230                         rect = core::rect<s32>(
 231                                         screensize.X/2 - size.X/2,
 232                                         screensize.Y/2 - size.Y/2,
 233                                         screensize.X/2 + size.X/2,
 234                                         screensize.Y/2 + size.Y/2
 235                         );
 236                         DesiredRect = rect;
 237                         recalculateAbsolutePosition(false);
 238                         basepos = getBasePos();
 239                         bp_set = 2;
 240                 }
 241                 else if(type == "list")
 242                 {
 243                         std::string name = f.next(";");
 244                         InventoryLocation loc;
 245                         if(name == "context" || name == "current_name")
 246                                 loc = m_current_inventory_location;
 247                         else
 248                                 loc.deSerialize(name);
 249                         std::string listname = f.next(";");
 250                         v2s32 pos = basepos;
 251                         pos.X += stof(f.next(",")) * (float)spacing.X;
 252                         pos.Y += stof(f.next(";")) * (float)spacing.Y;
 253                         v2s32 geom;
 254                         geom.X = stoi(f.next(","));
 255                         geom.Y = stoi(f.next(";"));
 256                         infostream<<"list inv="<<name<<", listname="<<listname
 257                                         <<", pos=("<<pos.X<<","<<pos.Y<<")"
 258                                         <<", geom=("<<geom.X<<","<<geom.Y<<")"
 259                                         <<std::endl;
 260                         std::string start_i_s = f.next("]");
 261                         s32 start_i = 0;
 262                         if(start_i_s != "")
 263                                 start_i = stoi(start_i_s);
 264                         if(bp_set != 2)
 265                                 errorstream<<"WARNING: invalid use of list without a size[] element"<<std::endl;
 266                         m_inventorylists.push_back(ListDrawSpec(loc, listname, pos, geom, start_i));
 267                 }
 268                 else if(type == "image")
 269                 {
 270                         v2s32 pos = basepos;
 271                         pos.X += stof(f.next(",")) * (float)spacing.X;
 272                         pos.Y += stof(f.next(";")) * (float)spacing.Y;
 273                         v2s32 geom;
 274                         geom.X = stof(f.next(",")) * (float)imgsize.X;
 275                         geom.Y = stof(f.next(";")) * (float)imgsize.Y;
 276                         std::string name = f.next("]");
 277                         infostream<<"image name="<<name
 278                                         <<", pos=("<<pos.X<<","<<pos.Y<<")"
 279                                         <<", geom=("<<geom.X<<","<<geom.Y<<")"
 280                                         <<std::endl;
 281                         if(bp_set != 2)
 282                                 errorstream<<"WARNING: invalid use of image without a size[] element"<<std::endl;
 283                         m_images.push_back(ImageDrawSpec(name, pos, geom));
 284                 }
 285                 else if(type == "background")
 286                 {
 287                         v2s32 pos = basepos;
 288                         pos.X += stof(f.next(",")) * (float)spacing.X - ((float)spacing.X-(float)imgsize.X)/2;
 289                         pos.Y += stof(f.next(";")) * (float)spacing.Y - ((float)spacing.Y-(float)imgsize.Y)/2;
 290                         v2s32 geom;
 291                         geom.X = stof(f.next(",")) * (float)spacing.X;
 292                         geom.Y = stof(f.next(";")) * (float)spacing.Y;
 293                         std::string name = f.next("]");
 294                         infostream<<"image name="<<name
 295                                         <<", pos=("<<pos.X<<","<<pos.Y<<")"
 296                                         <<", geom=("<<geom.X<<","<<geom.Y<<")"
 297                                         <<std::endl;
 298                         if(bp_set != 2)
 299                                 errorstream<<"WARNING: invalid use of background without a size[] element"<<std::endl;
 300                         m_backgrounds.push_back(ImageDrawSpec(name, pos, geom));
 301                 }
 302                 else if(type == "field")
 303                 {
 304                         std::string fname = f.next(";");
 305                         std::string flabel = f.next(";");
 306
 307                         if(fname.find(",") == std::string::npos && flabel.find(",") == std::string::npos)
 308                         {
 309                                 if(!bp_set)
 310                                 {
 311                                         rect = core::rect<s32>(
 312                                                 screensize.X/2 - 580/2,
 313                                                 screensize.Y/2 - 300/2,
 314                                                 screensize.X/2 + 580/2,
 315                                                 screensize.Y/2 + 300/2
 316                                         );
 317                                         DesiredRect = rect;
 318                                         recalculateAbsolutePosition(false);
 319                                         basepos = getBasePos();
 320                                         bp_set = 1;
 321                                 }
 322                                 else if(bp_set == 2)
 323                                         errorstream<<"WARNING: invalid use of unpositioned field in inventory"<<std::endl;
 324
 325                                 v2s32 pos = basepos;
 326                                 pos.Y = ((m_fields.size()+2)*60);
 327                                 v2s32 size = DesiredRect.getSize();
 328                                 rect = core::rect<s32>(size.X/2-150, pos.Y, (size.X/2-150)+300, pos.Y+30);
 329                         }
 330                         else
 331                         {
 332                                 v2s32 pos;
 333                                 pos.X = stof(fname.substr(0,fname.find(","))) * (float)spacing.X;
 334                                 pos.Y = stof(fname.substr(fname.find(",")+1)) * (float)spacing.Y;
 335                                 v2s32 geom;
 336                                 geom.X = (stof(flabel.substr(0,flabel.find(","))) * (float)spacing.X)-(spacing.X-imgsize.X);
 337                                 pos.Y += (stof(flabel.substr(flabel.find(",")+1)) * (float)imgsize.Y)/2;
 338
 339                                 rect = core::rect<s32>(pos.X, pos.Y-15, pos.X+geom.X, pos.Y+15);
 340
 341                                 fname = f.next(";");
 342                                 flabel = f.next(";");
 343                                 if(bp_set != 2)
 344                                         errorstream<<"WARNING: invalid use of positioned field without a size[] element"<<std::endl;
 345
 346                         }
 347
 348                         std::string odefault = f.next("]");
 349                         std::string fdefault;
 350
 351                         // fdefault may contain a variable reference, which
 352                         // needs to be resolved from the node metadata
 353                         if(m_form_src)
 354                                 fdefault = m_form_src->resolveText(odefault);
 355                         else
 356                                 fdefault = odefault;
 357
 358                         FieldSpec spec = FieldSpec(
 359                                 narrow_to_wide(fname.c_str()),
 360                                 narrow_to_wide(flabel.c_str()),
 361                                 narrow_to_wide(fdefault.c_str()),
 362                                 258+m_fields.size()
 363                         );
 364
 365                         // three cases: field and no label, label and no field, label and field
 366                         if (flabel == "")
 367                         {
 368                                 spec.send = true;
 369                                 gui::IGUIElement *e = Environment->addEditBox(spec.fdefault.c_str(), rect, true, this, spec.fid);
 370                                 Environment->setFocus(e);
 371
 372                                 irr::SEvent evt;
 373                                 evt.EventType = EET_KEY_INPUT_EVENT;
 374                                 evt.KeyInput.Key = KEY_END;
 375                                 evt.KeyInput.PressedDown = true;
 376                                 e->OnEvent(evt);
 377                         }
 378                         else if (fname == "")
 379                         {
 380                                 // set spec field id to 0, this stops submit searching for a value that isn't there
 381                                 Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, spec.fid);
 382                         }
 383                         else
 384                         {
 385                                 spec.send = true;
 386                                 gui::IGUIElement *e = Environment->addEditBox(spec.fdefault.c_str(), rect, true, this, spec.fid);
 387                                 Environment->setFocus(e);
 388                                 rect.UpperLeftCorner.Y -= 15;
 389                                 rect.LowerRightCorner.Y -= 15;
 390                                 Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, 0);
 391
 392                                 irr::SEvent evt;
 393                                 evt.EventType = EET_KEY_INPUT_EVENT;
 394                                 evt.KeyInput.Key = KEY_END;
 395                                 evt.KeyInput.PressedDown = true;
 396                                 e->OnEvent(evt);
 397                         }
 398
 399                         m_fields.push_back(spec);
 400                 }
 401                 else if(type == "label")
 402                 {
 403                         v2s32 pos = padding;
 404                         pos.X += stof(f.next(",")) * (float)spacing.X;
 405                         pos.Y += stof(f.next(";")) * (float)spacing.Y;
 406
 407                         rect = core::rect<s32>(pos.X, pos.Y+((imgsize.Y/2)-15), pos.X+300, pos.Y+((imgsize.Y/2)+15));
 408
 409                         std::string flabel = f.next("]");
 410                         if(bp_set != 2)
 411                                 errorstream<<"WARNING: invalid use of label without a size[] element"<<std::endl;
 412
 413                         FieldSpec spec = FieldSpec(
 414                                 narrow_to_wide(""),
 415                                 narrow_to_wide(flabel.c_str()),
 416                                 narrow_to_wide(""),
 417                                 258+m_fields.size()
 418                         );
 419                         Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, spec.fid);
 420                         m_fields.push_back(spec);
 421                 }
 422                 else if(type == "button" || type == "button_exit")
 423                 {
 424                         v2s32 pos = padding;
 425                         pos.X += stof(f.next(",")) * (float)spacing.X;
 426                         pos.Y += stof(f.next(";")) * (float)spacing.Y;
 427                         v2s32 geom;
 428                         geom.X = (stof(f.next(",")) * (float)spacing.X)-(spacing.X-imgsize.X);
 429                         pos.Y += (stof(f.next(";")) * (float)imgsize.Y)/2;
 430
 431                         rect = core::rect<s32>(pos.X, pos.Y-15, pos.X+geom.X, pos.Y+15);
 432
 433                         std::string fname = f.next(";");
 434                         std::string flabel = f.next("]");
 435                         if(bp_set != 2)
 436                                 errorstream<<"WARNING: invalid use of button without a size[] element"<<std::endl;
 437
 438                         FieldSpec spec = FieldSpec(
 439                                 narrow_to_wide(fname.c_str()),
 440                                 narrow_to_wide(flabel.c_str()),
 441                                 narrow_to_wide(""),
 442                                 258+m_fields.size()
 443                         );
 444                         spec.is_button = true;
 445                         if(type == "button_exit")
 446                                 spec.is_exit = true;
 447                         Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());
 448                         m_fields.push_back(spec);
 449                 }
 450                 else if(type == "image_button" || type == "image_button_exit")
 451                 {
 452                         v2s32 pos = padding;
 453                         pos.X += stof(f.next(",")) * (float)spacing.X;
 454                         pos.Y += stof(f.next(";")) * (float)spacing.Y;
 455                         v2s32 geom;
 456                         geom.X = (stof(f.next(",")) * (float)spacing.X)-(spacing.X-imgsize.X);
 457                         geom.Y = (stof(f.next(";")) * (float)spacing.Y)-(spacing.Y-imgsize.Y);
 458
 459                         rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);
 460
 461                         std::string fimage = f.next(";");
 462                         std::string fname = f.next(";");
 463                         std::string flabel = f.next("]");
 464                         if(bp_set != 2)
 465                                 errorstream<<"WARNING: invalid use of image_button without a size[] element"<<std::endl;
 466
 467                         FieldSpec spec = FieldSpec(
 468                                 narrow_to_wide(fname.c_str()),
 469                                 narrow_to_wide(flabel.c_str()),
 470                                 narrow_to_wide(fimage.c_str()),
 471                                 258+m_fields.size()
 472                         );
 473                         spec.is_button = true;
 474                         if(type == "image_button_exit")
 475                                 spec.is_exit = true;
 476
 477                         video::ITexture *texture = m_gamedef->tsrc()->getTextureRaw(fimage);
 478                         gui::IGUIButton *e = Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());
 479                         e->setUseAlphaChannel(true);
 480                         e->setImage(texture);
 481                         e->setPressedImage(texture);
 482                         e->setScaleImage(true);
 483
 484                         m_fields.push_back(spec);
 485                 }
 486                 else
 487                 {
 488                         // Ignore others
 489                         std::string ts = f.next("]");
 490                         infostream<<"Unknown DrawSpec: type="<<type<<", data=\""<<ts<<"\""
 491                                         <<std::endl;
 492                 }
 493         }
 494
 495         // If there's inventory, put the usage string at the bottom
 496         if (m_inventorylists.size())
 497         {
 498                 changeCtype("");
 499                 core::rect<s32> rect(0, 0, size.X-padding.X*2, helptext_h);
 500                 rect = rect + v2s32(size.X/2 - rect.getWidth()/2,
 501                                 size.Y-rect.getHeight()-5);
 502                 const wchar_t *text = wgettext("Left click: Move all items, Right click: Move single item");
 503                 Environment->addStaticText(text, rect, false, true, this, 256);
 504                 changeCtype("C");
 505         }
 506         // If there's fields, add a Proceed button
 507         if (m_fields.size() && bp_set != 2)
 508         {
 509                 // if the size wasn't set by an invsize[] or size[] adjust it now to fit all the fields
 510                 rect = core::rect<s32>(
 511                         screensize.X/2 - 580/2,
 512                         screensize.Y/2 - 300/2,
 513                         screensize.X/2 + 580/2,
 514                         screensize.Y/2 + 240/2+(m_fields.size()*60)
 515                 );
 516                 DesiredRect = rect;
 517                 recalculateAbsolutePosition(false);
 518                 basepos = getBasePos();
 519
 520                 changeCtype("");
 521                 {
 522                         v2s32 pos = basepos;
 523                         pos.Y = ((m_fields.size()+2)*60);
 524
 525                         v2s32 size = DesiredRect.getSize();
 526                         rect = core::rect<s32>(size.X/2-70, pos.Y, (size.X/2-70)+140, pos.Y+30);
 527                         Environment->addButton(rect, this, 257, wgettext("Proceed"));
 528                 }
 529                 changeCtype("C");
 530         }
 531         // Add tooltip
 532         {
 533                 // Note: parent != this so that the tooltip isn't clipped by the menu rectangle
 534                 m_tooltip_element = Environment->addStaticText(L"",core::rect<s32>(0,0,110,18));
 535                 m_tooltip_element->enableOverrideColor(true);
 536                 m_tooltip_element->setBackgroundColor(video::SColor(255,110,130,60));
 537                 m_tooltip_element->setDrawBackground(true);
 538                 m_tooltip_element->setDrawBorder(true);
 539                 m_tooltip_element->setOverrideColor(video::SColor(255,255,255,255));
 540                 m_tooltip_element->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_CENTER);
 541                 m_tooltip_element->setWordWrap(false);
 542         }
 543 }
 544
 545 GUIFormSpecMenu::ItemSpec GUIFormSpecMenu::getItemAtPos(v2s32 p) const
 546 {
 547         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
 548
 549         for(u32 i=0; i<m_inventorylists.size(); i++)
 550         {
 551                 const ListDrawSpec &s = m_inventorylists[i];
 552
 553                 for(s32 i=0; i<s.geom.X*s.geom.Y; i++)
 554                 {
 555                         s32 item_i = i + s.start_item_i;
 556                         s32 x = (i%s.geom.X) * spacing.X;
 557                         s32 y = (i/s.geom.X) * spacing.Y;
 558                         v2s32 p0(x,y);
 559                         core::rect<s32> rect = imgrect + s.pos + p0;
 560                         if(rect.isPointInside(p))
 561                         {
 562                                 return ItemSpec(s.inventoryloc, s.listname, item_i);
 563                         }
 564                 }
 565         }
 566
 567         return ItemSpec(InventoryLocation(), "", -1);
 568 }
 569
 570 void GUIFormSpecMenu::drawList(const ListDrawSpec &s, int phase)
 571 {
 572         video::IVideoDriver* driver = Environment->getVideoDriver();
 573
 574         // Get font
 575         gui::IGUIFont *font = NULL;
 576         gui::IGUISkin* skin = Environment->getSkin();
 577         if (skin)
 578                 font = skin->getFont();
 579
 580         Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
 581         if(!inv){
 582                 infostream<<"GUIFormSpecMenu::drawList(): WARNING: "
 583                                 <<"The inventory location "
 584                                 <<"\""<<s.inventoryloc.dump()<<"\" doesn't exist"
 585                                 <<std::endl;
 586                 return;
 587         }
 588         InventoryList *ilist = inv->getList(s.listname);
 589         if(!ilist){
 590                 infostream<<"GUIFormSpecMenu::drawList(): WARNING: "
 591                                 <<"The inventory list \""<<s.listname<<"\" @ \""
 592                                 <<s.inventoryloc.dump()<<"\" doesn't exist"
 593                                 <<std::endl;
 594                 return;
 595         }
 596
 597         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
 598
 599         for(s32 i=0; i<s.geom.X*s.geom.Y; i++)
 600         {
 601                 u32 item_i = i + s.start_item_i;
 602                 if(item_i >= ilist->getSize())
 603                         break;
 604                 s32 x = (i%s.geom.X) * spacing.X;
 605                 s32 y = (i/s.geom.X) * spacing.Y;
 606                 v2s32 p(x,y);
 607                 core::rect<s32> rect = imgrect + s.pos + p;
 608                 ItemStack item;
 609                 if(ilist)
 610                         item = ilist->getItem(item_i);
 611
 612                 bool selected = m_selected_item
 613                         && m_invmgr->getInventory(m_selected_item->inventoryloc) == inv
 614                         && m_selected_item->listname == s.listname
 615                         && m_selected_item->i == i;
 616                 bool hovering = rect.isPointInside(m_pointer);
 617
 618                 if(phase == 0)
 619                 {
 620                         if(hovering && m_selected_item)
 621                         {
 622                                 video::SColor bgcolor(255,192,192,192);
 623                                 driver->draw2DRectangle(bgcolor, rect, &AbsoluteClippingRect);
 624                         }
 625                         else
 626                         {
 627                                 video::SColor bgcolor(255,128,128,128);
 628                                 driver->draw2DRectangle(bgcolor, rect, &AbsoluteClippingRect);
 629                         }
 630                 }
 631
 632                 if(phase == 1)
 633                 {
 634                         // Draw item stack
 635                         if(selected)
 636                         {
 637                                 item.takeItem(m_selected_amount);
 638                         }
 639                         if(!item.empty())
 640                         {
 641                                 drawItemStack(driver, font, item,
 642                                                 rect, &AbsoluteClippingRect, m_gamedef);
 643                         }
 644
 645                         // Draw tooltip
 646                         std::string tooltip_text = "";
 647                         if(hovering && !m_selected_item)
 648                                 tooltip_text = item.getDefinition(m_gamedef->idef()).description;
 649                         if(tooltip_text != "")
 650                         {
 651                                 m_tooltip_element->setVisible(true);
 652                                 this->bringToFront(m_tooltip_element);
 653                                 m_tooltip_element->setText(narrow_to_wide(tooltip_text).c_str());
 654                                 s32 tooltip_x = m_pointer.X + 15;
 655                                 s32 tooltip_y = m_pointer.Y + 15;
 656                                 s32 tooltip_width = m_tooltip_element->getTextWidth() + 15;
 657                                 s32 tooltip_height = m_tooltip_element->getTextHeight() + 5;
 658                                 m_tooltip_element->setRelativePosition(core::rect<s32>(
 659                                                 core::position2d<s32>(tooltip_x, tooltip_y),
 660                                                 core::dimension2d<s32>(tooltip_width, tooltip_height)));
 661                         }
 662                 }
 663         }
 664 }
 665
 666 void GUIFormSpecMenu::drawSelectedItem()
 667 {
 668         if(!m_selected_item)
 669                 return;
 670
 671         video::IVideoDriver* driver = Environment->getVideoDriver();
 672
 673         // Get font
 674         gui::IGUIFont *font = NULL;
 675         gui::IGUISkin* skin = Environment->getSkin();
 676         if (skin)
 677                 font = skin->getFont();
 678
 679         Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
 680         assert(inv);
 681         InventoryList *list = inv->getList(m_selected_item->listname);
 682         assert(list);
 683         ItemStack stack = list->getItem(m_selected_item->i);
 684         stack.count = m_selected_amount;
 685
 686         core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
 687         core::rect<s32> rect = imgrect + (m_pointer - imgrect.getCenter());
 688         drawItemStack(driver, font, stack, rect, NULL, m_gamedef);
 689 }
 690
 691 void GUIFormSpecMenu::drawMenu()
 692 {
 693         if(m_form_src){
 694                 std::string newform = m_form_src->getForm();
 695                 if(newform != m_formspec_string){
 696                         m_formspec_string = newform;
 697                         regenerateGui(m_screensize_old);
 698                 }
 699         }
 700
 701         updateSelectedItem();
 702
 703         gui::IGUISkin* skin = Environment->getSkin();
 704         if (!skin)
 705                 return;
 706         video::IVideoDriver* driver = Environment->getVideoDriver();
 707
 708         video::SColor bgcolor(140,0,0,0);
 709         driver->draw2DRectangle(bgcolor, AbsoluteRect, &AbsoluteClippingRect);
 710
 711         m_tooltip_element->setVisible(false);
 712
 713         /*
 714                 Draw backgrounds
 715         */
 716         for(u32 i=0; i<m_backgrounds.size(); i++)
 717         {
 718                 const ImageDrawSpec &spec = m_backgrounds[i];
 719                 video::ITexture *texture =
 720                                 m_gamedef->tsrc()->getTextureRaw(spec.name);
 721                 // Image size on screen
 722                 core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
 723                 // Image rectangle on screen
 724                 core::rect<s32> rect = imgrect + spec.pos;
 725                 const video::SColor color(255,255,255,255);
 726                 const video::SColor colors[] = {color,color,color,color};
 727                 driver->draw2DImage(texture, rect,
 728                         core::rect<s32>(core::position2d<s32>(0,0),
 729                                         core::dimension2di(texture->getOriginalSize())),
 730                         NULL/*&AbsoluteClippingRect*/, colors, true);
 731         }
 732
 733         /*
 734                 Draw images
 735         */
 736         for(u32 i=0; i<m_images.size(); i++)
 737         {
 738                 const ImageDrawSpec &spec = m_images[i];
 739                 video::ITexture *texture =
 740                                 m_gamedef->tsrc()->getTextureRaw(spec.name);
 741                 // Image size on screen
 742                 core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
 743                 // Image rectangle on screen
 744                 core::rect<s32> rect = imgrect + spec.pos;
 745                 const video::SColor color(255,255,255,255);
 746                 const video::SColor colors[] = {color,color,color,color};
 747                 driver->draw2DImage(texture, rect,
 748                         core::rect<s32>(core::position2d<s32>(0,0),
 749                                         core::dimension2di(texture->getOriginalSize())),
 750                         NULL/*&AbsoluteClippingRect*/, colors, true);
 751         }
 752
 753         /*
 754                 Draw items
 755                 Phase 0: Item slot rectangles
 756                 Phase 1: Item images; prepare tooltip
 757                 If backgrounds used, do not draw Item slot rectangles
 758         */
 759         int start_phase=0;
 760         if (m_backgrounds.size() > 0) start_phase=1;
 761         for(int phase=start_phase; phase<=1; phase++)
 762         for(u32 i=0; i<m_inventorylists.size(); i++)
 763         {
 764                 drawList(m_inventorylists[i], phase);
 765         }
 766
 767         /*
 768                 Draw dragged item stack
 769         */
 770         drawSelectedItem();
 771
 772         /*
 773                 Call base class
 774         */
 775         gui::IGUIElement::draw();
 776 }
 777
 778 void GUIFormSpecMenu::updateSelectedItem()
 779 {
 780         // WARNING: BLACK MAGIC
 781         // See if there is a stack suited for our current guess.
 782         // If such stack does not exist, clear the guess.
 783         if(m_selected_content_guess.name != "")
 784         {
 785                 bool found = false;
 786                 for(u32 i=0; i<m_inventorylists.size() && !found; i++){
 787                         const ListDrawSpec &s = m_inventorylists[i];
 788                         Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
 789                         if(!inv)
 790                                 continue;
 791                         InventoryList *list = inv->getList(s.listname);
 792                         if(!list)
 793                                 continue;
 794                         for(s32 i=0; i<s.geom.X*s.geom.Y && !found; i++){
 795                                 u32 item_i = i + s.start_item_i;
 796                                 if(item_i >= list->getSize())
 797                                         continue;
 798                                 ItemStack stack = list->getItem(item_i);
 799                                 if(stack.name == m_selected_content_guess.name &&
 800                                                 stack.count == m_selected_content_guess.count){
 801                                         found = true;
 802                                         if(m_selected_item){
 803                                                 // If guessed stack is already selected, all is fine
 804                                                 if(m_selected_item->inventoryloc == s.inventoryloc &&
 805                                                                 m_selected_item->listname == s.listname &&
 806                                                                 m_selected_item->i == (s32)item_i &&
 807                                                                 m_selected_amount == stack.count){
 808                                                         break;
 809                                                 }
 810                                                 delete m_selected_item;
 811                                                 m_selected_item = NULL;
 812                                         }
 813                                         infostream<<"Client: Changing selected content guess to "
 814                                                         <<s.inventoryloc.dump()<<" "<<s.listname
 815                                                         <<" "<<item_i<<std::endl;
 816                                         m_selected_item = new ItemSpec(s.inventoryloc, s.listname, item_i);
 817                                         m_selected_amount = stack.count;
 818                                         break;
 819                                 }
 820                         }
 821                 }
 822                 if(!found){
 823                         infostream<<"Client: Discarding selected content guess: "
 824                                         <<m_selected_content_guess.getItemString()<<std::endl;
 825                         m_selected_content_guess.name = "";
 826                 }
 827         }
 828         // If the selected stack has become empty for some reason, deselect it.
 829         // If the selected stack has become smaller, adjust m_selected_amount.
 830         if(m_selected_item)
 831         {
 832                 bool selection_valid = false;
 833                 if(m_selected_item->isValid())
 834                 {
 835                         Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
 836                         if(inv)
 837                         {
 838                                 InventoryList *list = inv->getList(m_selected_item->listname);
 839                                 if(list && (u32) m_selected_item->i < list->getSize())
 840                                 {
 841                                         ItemStack stack = list->getItem(m_selected_item->i);
 842                                         if(m_selected_amount > stack.count)
 843                                                 m_selected_amount = stack.count;
 844                                         if(!stack.empty())
 845                                                 selection_valid = true;
 846                                 }
 847                         }
 848                 }
 849                 if(!selection_valid)
 850                 {
 851                         delete m_selected_item;
 852                         m_selected_item = NULL;
 853                         m_selected_amount = 0;
 854                         m_selected_dragging = false;
 855                 }
 856         }
 857
 858         // If craftresult is nonempty and nothing else is selected, select it now.
 859         if(!m_selected_item)
 860         {
 861                 for(u32 i=0; i<m_inventorylists.size(); i++)
 862                 {
 863                         const ListDrawSpec &s = m_inventorylists[i];
 864                         if(s.listname == "craftpreview")
 865                         {
 866                                 Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
 867                                 InventoryList *list = inv->getList("craftresult");
 868                                 if(list && list->getSize() >= 1 && !list->getItem(0).empty())
 869                                 {
 870                                         m_selected_item = new ItemSpec;
 871                                         m_selected_item->inventoryloc = s.inventoryloc;
 872                                         m_selected_item->listname = "craftresult";
 873                                         m_selected_item->i = 0;
 874                                         m_selected_amount = 0;
 875                                         m_selected_dragging = false;
 876                                         break;
 877                                 }
 878                         }
 879                 }
 880         }
 881
 882         // If craftresult is selected, keep the whole stack selected
 883         if(m_selected_item && m_selected_item->listname == "craftresult")
 884         {
 885                 Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
 886                 assert(inv);
 887                 InventoryList *list = inv->getList(m_selected_item->listname);
 888                 assert(list);
 889                 m_selected_amount = list->getItem(m_selected_item->i).count;
 890         }
 891 }
 892
 893 void GUIFormSpecMenu::acceptInput()
 894 {
 895         if(m_text_dst)
 896         {
 897                 std::map<std::string, std::string> fields;
 898                 gui::IGUIElement *e;
 899                 for(u32 i=0; i<m_fields.size(); i++)
 900                 {
 901                         const FieldSpec &s = m_fields[i];
 902                         if(s.send)
 903                         {
 904                                 if(s.is_button)
 905                                 {
 906                                         fields[wide_to_narrow(s.fname.c_str())] = wide_to_narrow(s.flabel.c_str());
 907                                 }
 908                                 else
 909                                 {
 910                                         e = getElementFromId(s.fid);
 911                                         if(e != NULL)
 912                                         {
 913                                                 fields[wide_to_narrow(s.fname.c_str())] = wide_to_narrow(e->getText());
 914                                         }
 915                                 }
 916                         }
 917                 }
 918                 m_text_dst->gotText(fields);
 919         }
 920 }
 921
 922 bool GUIFormSpecMenu::OnEvent(const SEvent& event)
 923 {
 924         if(event.EventType==EET_KEY_INPUT_EVENT)
 925         {
 926                 KeyPress kp(event.KeyInput);
 927                 if (event.KeyInput.PressedDown && (kp == EscapeKey ||
 928                         kp == getKeySetting("keymap_inventory")))
 929                 {
 930                         quitMenu();
 931                         return true;
 932                 }
 933                 if(event.KeyInput.Key==KEY_RETURN && event.KeyInput.PressedDown)
 934                 {
 935                         acceptInput();
 936                         quitMenu();
 937                         return true;
 938                 }
 939         }
 940         if(event.EventType==EET_MOUSE_INPUT_EVENT
 941                         && event.MouseInput.Event == EMIE_MOUSE_MOVED)
 942         {
 943                 // Mouse moved
 944                 m_pointer = v2s32(event.MouseInput.X, event.MouseInput.Y);
 945         }
 946         if(event.EventType==EET_MOUSE_INPUT_EVENT
 947                         && event.MouseInput.Event != EMIE_MOUSE_MOVED)
 948         {
 949                 // Mouse event other than movement
 950
 951                 v2s32 p(event.MouseInput.X, event.MouseInput.Y);
 952                 m_pointer = p;
 953
 954                 // Get selected item and hovered/clicked item (s)
 955
 956                 updateSelectedItem();
 957                 ItemSpec s = getItemAtPos(p);
 958
 959                 Inventory *inv_selected = NULL;
 960                 Inventory *inv_s = NULL;
 961
 962                 if(m_selected_item)
 963                 {
 964                         inv_selected = m_invmgr->getInventory(m_selected_item->inventoryloc);
 965                         assert(inv_selected);
 966                         assert(inv_selected->getList(m_selected_item->listname) != NULL);
 967                 }
 968
 969                 u32 s_count = 0;
 970
 971                 if(s.isValid())
 972                 do{ // breakable
 973                         inv_s = m_invmgr->getInventory(s.inventoryloc);
 974
 975                         if(!inv_s){
 976                                 errorstream<<"InventoryMenu: The selected inventory location "
 977                                                 <<"\""<<s.inventoryloc.dump()<<"\" doesn't exist"
 978                                                 <<std::endl;
 979                                 s.i = -1;  // make it invalid again
 980                                 break;
 981                         }
 982
 983                         InventoryList *list = inv_s->getList(s.listname);
 984                         if(list == NULL){
 985                                 verbosestream<<"InventoryMenu: The selected inventory list \""
 986                                                 <<s.listname<<"\" does not exist"<<std::endl;
 987                                 s.i = -1;  // make it invalid again
 988                                 break;
 989                         }
 990
 991                         if((u32)s.i >= list->getSize()){
 992                                 infostream<<"InventoryMenu: The selected inventory list \""
 993                                                 <<s.listname<<"\" is too small (i="<<s.i<<", size="
 994                                                 <<list->getSize()<<")"<<std::endl;
 995                                 s.i = -1;  // make it invalid again
 996                                 break;
 997                         }
 998
 999                         s_count = list->getItem(s.i).count;
1000                 }while(0);
1001
1002                 bool identical = (m_selected_item != NULL) && s.isValid() &&
1003                         (inv_selected == inv_s) &&
1004                         (m_selected_item->listname == s.listname) &&
1005                         (m_selected_item->i == s.i);
1006
1007                 // buttons: 0 = left, 1 = right, 2 = middle
1008                 // up/down: 0 = down (press), 1 = up (release), 2 = unknown event
1009                 int button = 0;
1010                 int updown = 2;
1011                 if(event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN)
1012                         { button = 0; updown = 0; }
1013                 else if(event.MouseInput.Event == EMIE_RMOUSE_PRESSED_DOWN)
1014                         { button = 1; updown = 0; }
1015                 else if(event.MouseInput.Event == EMIE_MMOUSE_PRESSED_DOWN)
1016                         { button = 2; updown = 0; }
1017                 else if(event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP)
1018                         { button = 0; updown = 1; }
1019                 else if(event.MouseInput.Event == EMIE_RMOUSE_LEFT_UP)
1020                         { button = 1; updown = 1; }
1021                 else if(event.MouseInput.Event == EMIE_MMOUSE_LEFT_UP)
1022                         { button = 2; updown = 1; }
1023
1024                 // Set this number to a positive value to generate a move action
1025                 // from m_selected_item to s.
1026                 u32 move_amount = 0;
1027
1028                 // Set this number to a positive value to generate a drop action
1029                 // from m_selected_item.
1030                 u32 drop_amount = 0;
1031
1032                 // Set this number to a positive value to generate a craft action at s.
1033                 u32 craft_amount = 0;
1034
1035                 if(updown == 0)
1036                 {
1037                         // Some mouse button has been pressed
1038
1039                         //infostream<<"Mouse button "<<button<<" pressed at p=("
1040                         //      <<p.X<<","<<p.Y<<")"<<std::endl;
1041
1042                         m_selected_dragging = false;
1043
1044                         if(s.isValid() && s.listname == "craftpreview")
1045                         {
1046                                 // Craft preview has been clicked: craft
1047                                 craft_amount = (button == 2 ? 10 : 1);
1048                         }
1049                         else if(m_selected_item == NULL)
1050                         {
1051                                 if(s_count != 0)
1052                                 {
1053                                         // Non-empty stack has been clicked: select it
1054                                         m_selected_item = new ItemSpec(s);
1055
1056                                         if(button == 1)  // right
1057                                                 m_selected_amount = (s_count + 1) / 2;
1058                                         else if(button == 2)  // middle
1059                                                 m_selected_amount = MYMIN(s_count, 10);
1060                                         else  // left
1061                                                 m_selected_amount = s_count;
1062
1063                                         m_selected_dragging = true;
1064                                 }
1065                         }
1066                         else  // m_selected_item != NULL
1067                         {
1068                                 assert(m_selected_amount >= 1);
1069
1070                                 if(s.isValid())
1071                                 {
1072                                         // Clicked a slot: move
1073                                         if(button == 1)  // right
1074                                                 move_amount = 1;
1075                                         else if(button == 2)  // middle
1076                                                 move_amount = MYMIN(m_selected_amount, 10);
1077                                         else  // left
1078                                                 move_amount = m_selected_amount;
1079
1080                                         if(identical)
1081                                         {
1082                                                 if(move_amount >= m_selected_amount)
1083                                                         m_selected_amount = 0;
1084                                                 else
1085                                                         m_selected_amount -= move_amount;
1086                                                 move_amount = 0;
1087                                         }
1088                                 }
1089                                 else if(getAbsoluteClippingRect().isPointInside(m_pointer))
1090                                 {
1091                                         // Clicked somewhere else: deselect
1092                                         m_selected_amount = 0;
1093                                 }
1094                                 else
1095                                 {
1096                                         // Clicked outside of the window: drop
1097                                         if(button == 1)  // right
1098                                                 drop_amount = 1;
1099                                         else if(button == 2)  // middle
1100                                                 drop_amount = MYMIN(m_selected_amount, 10);
1101                                         else  // left
1102                                                 drop_amount = m_selected_amount;
1103                                 }
1104                         }
1105                 }
1106                 else if(updown == 1)
1107                 {
1108                         // Some mouse button has been released
1109
1110                         //infostream<<"Mouse button "<<button<<" released at p=("
1111                         //      <<p.X<<","<<p.Y<<")"<<std::endl;
1112
1113                         if(m_selected_item != NULL && m_selected_dragging && s.isValid())
1114                         {
1115                                 if(!identical)
1116                                 {
1117                                         // Dragged to different slot: move all selected
1118                                         move_amount = m_selected_amount;
1119                                 }
1120                         }
1121                         else if(m_selected_item != NULL && m_selected_dragging &&
1122                                 !(getAbsoluteClippingRect().isPointInside(m_pointer)))
1123                         {
1124                                 // Dragged outside of window: drop all selected
1125                                 drop_amount = m_selected_amount;
1126                         }
1127
1128                         m_selected_dragging = false;
1129                 }
1130
1131                 // Possibly send inventory action to server
1132                 if(move_amount > 0)
1133                 {
1134                         // Send IACTION_MOVE
1135
1136                         assert(m_selected_item && m_selected_item->isValid());
1137                         assert(s.isValid());
1138
1139                         assert(inv_selected && inv_s);
1140                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
1141                         InventoryList *list_to = inv_s->getList(s.listname);
1142                         assert(list_from && list_to);
1143                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
1144                         ItemStack stack_to = list_to->getItem(s.i);
1145
1146                         // Check how many items can be moved
1147                         move_amount = stack_from.count = MYMIN(move_amount, stack_from.count);
1148                         ItemStack leftover = stack_to.addItem(stack_from, m_gamedef->idef());
1149                         // If source stack cannot be added to destination stack at all,
1150                         // they are swapped
1151                         if(leftover.count == stack_from.count && leftover.name == stack_from.name)
1152                         {
1153                                 m_selected_amount = stack_to.count;
1154                                 // In case the server doesn't directly swap them but instead
1155                                 // moves stack_to somewhere else, set this
1156                                 m_selected_content_guess = stack_to;
1157                                 m_selected_content_guess_inventory = s.inventoryloc;
1158                         }
1159                         // Source stack goes fully into destination stack
1160                         else if(leftover.empty())
1161                         {
1162                                 m_selected_amount -= move_amount;
1163                                 m_selected_content_guess = ItemStack(); // Clear
1164                         }
1165                         // Source stack goes partly into destination stack
1166                         else
1167                         {
1168                                 move_amount -= leftover.count;
1169                                 m_selected_amount -= move_amount;
1170                                 m_selected_content_guess = ItemStack(); // Clear
1171                         }
1172
1173                         infostream<<"Handing IACTION_MOVE to manager"<<std::endl;
1174                         IMoveAction *a = new IMoveAction();
1175                         a->count = move_amount;
1176                         a->from_inv = m_selected_item->inventoryloc;
1177                         a->from_list = m_selected_item->listname;
1178                         a->from_i = m_selected_item->i;
1179                         a->to_inv = s.inventoryloc;
1180                         a->to_list = s.listname;
1181                         a->to_i = s.i;
1182                         m_invmgr->inventoryAction(a);
1183                 }
1184                 else if(drop_amount > 0)
1185                 {
1186                         m_selected_content_guess = ItemStack(); // Clear
1187
1188                         // Send IACTION_DROP
1189
1190                         assert(m_selected_item && m_selected_item->isValid());
1191                         assert(inv_selected);
1192                         InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
1193                         assert(list_from);
1194                         ItemStack stack_from = list_from->getItem(m_selected_item->i);
1195
1196                         // Check how many items can be dropped
1197                         drop_amount = stack_from.count = MYMIN(drop_amount, stack_from.count);
1198                         assert(drop_amount > 0 && drop_amount <= m_selected_amount);
1199                         m_selected_amount -= drop_amount;
1200
1201                         infostream<<"Handing IACTION_DROP to manager"<<std::endl;
1202                         IDropAction *a = new IDropAction();
1203                         a->count = drop_amount;
1204                         a->from_inv = m_selected_item->inventoryloc;
1205                         a->from_list = m_selected_item->listname;
1206                         a->from_i = m_selected_item->i;
1207                         m_invmgr->inventoryAction(a);
1208                 }
1209                 else if(craft_amount > 0)
1210                 {
1211                         m_selected_content_guess = ItemStack(); // Clear
1212
1213                         // Send IACTION_CRAFT
1214
1215                         assert(s.isValid());
1216                         assert(inv_s);
1217
1218                         infostream<<"Handing IACTION_CRAFT to manager"<<std::endl;
1219                         ICraftAction *a = new ICraftAction();
1220                         a->count = craft_amount;
1221                         a->craft_inv = s.inventoryloc;
1222                         m_invmgr->inventoryAction(a);
1223                 }
1224
1225                 // If m_selected_amount has been decreased to zero, deselect
1226                 if(m_selected_amount == 0)
1227                 {
1228                         delete m_selected_item;
1229                         m_selected_item = NULL;
1230                         m_selected_amount = 0;
1231                         m_selected_dragging = false;
1232                         m_selected_content_guess = ItemStack();
1233                 }
1234         }
1235         if(event.EventType==EET_GUI_EVENT)
1236         {
1237                 if(event.GUIEvent.EventType==gui::EGET_ELEMENT_FOCUS_LOST
1238                                 && isVisible())
1239                 {
1240                         if(!canTakeFocus(event.GUIEvent.Element))
1241                         {
1242                                 infostream<<"GUIFormSpecMenu: Not allowing focus change."
1243                                                 <<std::endl;
1244                                 // Returning true disables focus change
1245                                 return true;
1246                         }
1247                 }
1248                 if(event.GUIEvent.EventType==gui::EGET_BUTTON_CLICKED)
1249                 {
1250                         switch(event.GUIEvent.Caller->getID())
1251                         {
1252                         case 257:
1253                                 acceptInput();
1254                                 quitMenu();
1255                                 // quitMenu deallocates menu
1256                                 return true;
1257                         }
1258                         // find the element that was clicked
1259                         for(u32 i=0; i<m_fields.size(); i++)
1260                         {
1261                                 FieldSpec &s = m_fields[i];
1262                                 // if its a button, set the send field so
1263                                 // lua knows which button was pressed
1264                                 if (s.is_button && s.fid == event.GUIEvent.Caller->getID())
1265                                 {
1266                                         s.send = true;
1267                                         acceptInput();
1268                                         if(s.is_exit){
1269                                                 quitMenu();
1270                                                 return true;
1271                                         }else{
1272                                                 s.send = false;
1273                                                 // Restore focus to the full form
1274                                                 Environment->setFocus(this);
1275                                                 return true;
1276                                         }
1277                                 }
1278                         }
1279                 }
1280                 if(event.GUIEvent.EventType==gui::EGET_EDITBOX_ENTER)
1281                 {
1282                         if(event.GUIEvent.Caller->getID() > 257)
1283                         {
1284                                 acceptInput();
1285                                 quitMenu();
1286                                 // quitMenu deallocates menu
1287                                 return true;
1288                         }
1289                 }
1290         }
1291
1292         return Parent ? Parent->OnEvent(event) : false;
1293 }
1294